Читать книгу Understanding Anatomy and Physiology in Nursing - John Knight - Страница 43

Lining the nasal cavity, trachea and upper portions of the bronchial tree is a specialised ciliated epithelium. This is composed of a combination of tall column-shaped cells and smaller cells squashed between. This gives the false appearance of a tissue that is stratified (multilayered). The term pseudostratified (which literally means falsely layered) is often used to describe this tissue. In reality, all the cells within this tissue are in contact with the basement membrane and so pseudostratified epithelium is actually a specialised simple epithelium (Figure 1.8F).